<template>
    <div>
        <!--    顶部滑动条    -->
        <div id="slider" class="mui-slider">
            <div id="sliderSegmentedControl"
                 class="mui-scroll-wrapper mui-slider-indicator mui-segmented-control mui-segmented-control-inverted">
                <div class="mui-scroll">
                    <a :class="['mui-control-item',item.id ==0 ? 'mui-active' : '']" v-for="item in cates"
                       :key="item.id" @click="getPhotoListByCateId(item.id)">
                        {{item.title}}
                    </a>
                </div>
            </div>

        </div>
        <!--    图片列表区域    -->
        <ul class="photo-list">
            <router-link v-for="item in list" :key="item.id" :to="'/home/photoinfo/' + item.id" tag="li">
                <img v-lazy="item.img_url">
                <div class="info">
                    <h1 class="info-title">{{item.title}}</h1>
                    <div class="info-body">{{item.zhaiyao}}</div>
                </div>
            </router-link>
        </ul>
    </div>
</template>

<script>
    import mui from '../../lib/mul/js/mui.min'

    export default {
        data() {
            return {
                cates: [],
                list: []
            }
        },
        created() {
            this.getAllCategory();
            this.getPhotoListByCateId(0);
        },
        mounted() {
            mui('.mui-scroll-wrapper').scroll({
                deceleration: 0.0005 //flick 减速系数，系数越大，滚动速度越慢，滚动距离越小，默认值0.0006
            })
        },
        methods: {
            getAllCategory() {
                this.$http.get('http://www.liulongbin.top:3005/api/getimgcategory').then(result => {
                    var result = result.body;
                    if (result) {
                        result.message.unshift({title: "全部", id: 0});
                        this.cates = result.message;
                    }
                })
            },
            getPhotoListByCateId(cateId) {
                this.$http.get('http://www.liulongbin.top:3005/api/getimages/' + cateId).then(result => {
                    var result = result.body;
                    if (result) {
                        this.list = result.message;
                    }
                })
            }
        }
    }
</script>

<style scoped>
    * {
        touch-action: pan-y;
    }

    .photo-list {
        list-style: none;
        margin: 0;
        padding: 10px;
        padding-bottom: 0px;
    }

    .photo-list img {
        width: 100%;
        vertical-align: middle;
        box-shadow: 0 0 9px #999;

    }

    .photo-list li {
        background: #ccc;
        text-align: center;
        margin-bottom: 10px;
        position: relative;
    }

    .photo-list li img[lazy=loading] {
        width: 40px;
        height: 300px;
        margin: auto;
    }

    .photo-list .info {
        color: #fff;
        text-align: left;
        position: absolute;
        bottom:0;
        background: rgba(0,0,0,0.4);
        max-height: 120px;
    }

    .photo-list .info-title {
        font-size: 12px;
    }

    .photo-list .info-body {
        font-size: 11px;
    }
</style>